Yarn-controller for spinning-machines.



No. 665,237. Patented Jan. I, l90l. P. M. LIBBY.

YARN CONTROLLER FOR SPINNING MACHINES.

(Application filed July 7, 1898.) (No Model.) 2 SheetsSheet WITNESSES/NVENTOI? mfw QQfly A rromvE rs.

- Patented Jan. I, [90L 2 $heets-Sheet 2.

P. M. LIBBY. YARN CONTROLLER FOR SPINNING MACHINES.

(Application filed July 7, 1895.)

A TTOHNE Y S.

m: NORRIS PETE HS co. wuomuruoowuumamn, n. t.

(No Model.)

UNITED STATES ATENT FFIGE.

PETER MAYHEWLIBBY, OF WATERVILLE, MAINE, ASSIGNOR 0F ONE-HALF TO WILLIAMH. ABBOTT, OF SAME PLACE.

YARN-CONTROLLER FOR SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 665,237, dated January1, 1901.

Application filed July 7,1898. Serial No. 685,358- (No model.)

To all whom it may concern.-

Be it known that I, PETER MAYHEW LIBBY, of Waterville, in the county ofKennebec and State of Maine, have invented a new and ImprovedVibration-Regulator, of which the following .is a full, clear, and exactdescription.

My invention relates to ring spinning frames; and its object is toprovide a new and improved vibration-regulator which is simple anddurable in construction and arranged to overcome the irregularballooning and tension heretofore given to the yarn or thread by theoscillation of the ring-rail and to insure an even tension at all pointsof winding the yarn or thread on the bobbin.

In spinning and winding thread on bobbins by means of ring-spinningmachines the ballooning of the thread is subject toirregularities as thewinding progresses. This feature of these machines is veryobjectionable, since the tension of the feed-rollers is maintainedconstant throughout the length of the bobbin, and the irregularballooning causes the thread to break. These irregularities are due totwo distinct causesfirst, the decrease of the distance between thethread-eyes and the traveler as the ring-rail is lifted by successivestages to compensate for the piling up of the thread on the bobbin;secondly, the variation of the distance between the threadeyes and thetraveler caused by the oscillation of the ring-rail in winding from thelarge diameter to the small and reversely and the difference in tensioncaused by so winding.

To provide means for obviating the first irregularity has been theobject of many inventions patented both in this country and abroad.Among the devices so designed are several for raising or tilting thethread-board during the winding of the upper portion of the bobbin,where the difficulty is greatest.

In all of these devices the thread-board is raised intermittently andleft in its elevated position until the bobbin is completed. It has nodownward movement during the winding.

The second irregularity noted above has, so far as I know, never beennoticed, or at least no attempt has ever been made to remedy it. It isan improvement of this character which forms the subject-matter of thisapplication for patent, and I explicitly disclaim any intention ofendeavoring to claim any device of the first kind. To be sure, such adevice might be used to advantage in combination with mine; but therewould be no necessary combination between the two. In my regulator thethread-board is oscillated in unison with the ring-rail. It is returnedto its initial position after each oscillation, and is therefore notintermittently raised and left in its elevated position until the bobbinhas been completed.

The invention consists of novel features and parts .and combinationsofthe same, as

will be fully described hereinafter and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure l is a plan view of the improvement with parts broken out. Fig. 2is a sectional side elevation of the same on the line 2 2 in Fig. 1.Fig. 3 is a similar view of the same with parts in a difierent position.Fig. 4 is a cross-section of part of the improvement on the line 4 4 inFig. 2, and Fig. 5 is a sectional plan view of another part of theimprovement on the line 5 5 in Fig. 3.

The ring-spinning frame is provided with the tension-boards A A, hingedat their inner ends to the rails B B, respectively, of the frame of themachine, the outer ends of the boards carrying the usual eyes 0 0,respectively, for the threads or yarns D D to pass through to thecorresponding bobbins E E. The thread-boards A A' normally rest in ahorizontal position on friction-rollers F F, journaled in the free endsof arms G G, respectively, of which the arm G is secured on a shaft H,journaled in suitable bearings carried by brackets B attached'to therail B. The other arm G is mounted to swing loosely on a shaft 11, journaled in a bearing carried by a bracket B secured to the other railB. The arm G has an extension G in which is held vertically adjustable astud G engaging an elongated horizontally-extending slot G formed in anextension G of the arm G, so that when a swinging motion is given to thearm G then the extension G by the stud G imparts a like swinging motionto the extension G and the arm G.

In order to impart a swinging motion to the arm G, I fasten on the shaftH a downwardlyextending arm I, supporting a stud I, held verticallyadjustable in a slot 1 formed in the arm, and said stud is pivotallyconnected by a link 1 with a stud I extending through an elongated slotI in the said link, said stud being carried by an arm I, secured on theshaft H and parallel to the arm I.

On the shaft H is secured a lever-arm J, pivotally connected at its freeend with a reciprocating rod K, connected with the usual builder-arm ofthe ring-spinning machine, so that when the latter is in motion anup-anddown movement is given to the rod K to impart a like swingingmotion to the lever-arm J. tVhen the latter is thus moved, a rockingmotion is given to the shaft H, and its motion is transmitted by the armI, link 1 and arm I to the shaft H to impart a swinging motion to thearm G, and as the latter is connected with the arm G, as abovedescribed, a like movement is given to said arm G. \Vhen the arms G Gswing upward, their friction-rollers impart an upward-swinging motion tothe thread-boards AA, so that the thread guides or eyes 0 O are raisedto the desired position and distance by the upward movement of the ringrail and the threads thereby relieved of the extra tension given to themwhen being wound upon the smallest diameter of the bobbin. When the armsG G swing downward, then the threadboards A A by their own weight followthe downward movement of the said arms, so as to govern and control thevibration of the threads or yarns in the same manner as during theupward movement-that is, according to the proportion of the yarns orthreads wound on the bobbins E and E. When the yarn or thread is windingon the largest diameter of the bobbin, it balloons very much more thanwhen it is winding on the smallest diameter of the bobbin, or whenwinding from the largest diameter to the smallest on the bobbin, ashereinbefore set forth, then the tension increases. Thus by thearrangement described the irregular tension given to the yarns orthreads by the oscillation is completely avoided and an even tension isgiven to the yarns or threads at all points of wind ing on the bobbin.By having the link I adjustable with the stud I on the arm I andadjustable on the stud I any desired throw can be given to thethread-boards A A by the same movement of the reciprocating rod K. Whenthe bobbins are full, the machine is stopped and the full bobbins arereplaced by empty ones, and in order to permit the change mentioned itis necessary that the threadboards A A be lifted or swung upward to apoint above their uppermost position when the machine is in operation.In order to do this, the lever-arm J is provided at its free end with anangular elongated slot J, into which extends a stud K on the rod K, saidstud being normally looked in place in the upper end of the slot J bythe hook end L of a latch L, fulcrumed at L on the arm J, the latchhaving a second hook L adapted to engage a keeper N, secured on the rail1B. Thus when the operator swings the latch L upward into the positionshown in Fig. 3 and locks the latch to the keeper N then the stud K isfree to slide in the angular slot J and the arm J can be swung up aconsiderable distance to impart an upward swinging motion to thethread-boards A A above their highest position when the machine is inoperation. The lever-arm J, previously mentioned, is weighted, as at Jfor counterbalancing purposes to insure an easy movement of the variousparts.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. In a ring-spinning frame, the combination,with pivoted thread-boards, of shafts connected together to rock inunison, an arm on each shaft, said arms having their inner endsconnected together by a pin and slot and their outer ends projectingunder the threadboards and provided with friction rollers upon whichsaid boards rest, a lever-arm secured to one shaft, and means forimparting a swinging motion to the lever-arm, substantially asdescribed.

2. In a ring-spinning frame, the combination with pivoted thread-boards,of shafts having depending arms adjustably connected with each other, asecond arm on each shaft, said second arms having their inner endsconnected by a pin and slot with each other and their outer free endsprojecting under the thread-boards, and upon which the threadboardsrest, a lever-arm secured to one shaft and means for imparting aswinging motion to said lever-arm, substantially as described.

3. In a ring-spinning frame, the combina tion with pivotedthread-boards, of shafts each provided with a depending arm, one ofwhich is slotted, a link having one end slotted and connected with oneof the said arms and its other end connected with the slotted arm, anarm on each shaft, said arms having their inner ends connected with eachother by a pin and slot, and their outer ends engaging the under side ofthe thread-boards, and a counterbalanced lever-arm secured to one shaftand means for imparting a swinging motion to the lever-arm,substantially as described.

4. A ring-spinning frame, provided with pivoted thread-boards,armsmounted to swing and connected with each other to move in unison, thefree ends of the arms engaging the thread-boards to impart an upwardswingon said lever-arm for locking and unlocking ing motion to the same,the thread-boards the connection of the machine with and from followingthe free ends on the receding of the said lever-arm, as set forth.

same, a lever-arm, means for imparting a. PETER MAYHEW LIBBY. swingingmotion to the lever-arm, an adj ust- Witnesses:

able connection between the .said lever-arm S. I. ABBOTT,

and one of the thread-board arms, and a latch W. L. K. ABBOTT.

